Thirds to louisa will an peelle and sarah smith peelle



UNITED STAT PATENT OFFICE.

JAMES WALTERPEELLE, OF BROOKLYN, NEW YORK, ASSIGNOR on TWO- THIRDS TO LOUISA WILLAN PEELLE AND SARAH SMITH PEELLE, or

SAME PLACE.

PACKING.

SPECIFICATION forming part of Letters Patent No. 522,766, dated July 10, 1894. Application'filed November 22, 1393. Serial No. 491,667. (No specimens.)

useful Improvements in Packing; and :I do

hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates, generally, to combi nation packings for steam engines, pumps and similar devices, particularly to that class in which the packing consists of material more or less resilient and absorbent. Packing of this kind as heretofore used, soiled, more or less, that part of the rod which came in contact with it. This necessitated constant watchfulness and cleaning on the part of an engineer who cares properly for his machinery.

One of the objects of my invention is to remove, as far as possible, all objections of that kind andhave the rod neat and clean and free from discolorationat all times. This object is attainedby having a finemetallic gloss on the wearing surface of the packing and of the same color as the rod which is given thereby a polish similar in color to itself and without any increase, but rather a decrease in the friction of the parts.

There are other objects attained by the combination of certain elementary substances and which will be hereinafter explained.

The invention consists of a new and improved method of making the packing; abath in which the packing is treated; and in the article of manufacture all as will hereinafter be desoribed'in the specification and pointed out in the claims.

entirely through their dry condition makes the several pieces highly absorbent. The material is now plunged into a fluid mass warmed suificiently to be thoroughly limpid' and containing a finely powdered metal, such' as aluminium, copper, spelter or any other metal that is softer than iron. The mals's'is constantly agitatedwhile the packing is im- 1 stice has been fully occupied by the particles of powdened metal, it is placed in a warm place to dry. Before it is completely dried the packing may be treated to a thin coat of the powdered metal by tumbling it in the usual way or by exposing itto the action of c a rotary orother brush or polishing device. This gives the outside of the packing a perfect coating and presents a finished article of fine commercial appearance, and which if coated with metal of the same appearance as the rod, will not mar but add to the appearance of the rod working therein.

The material preferredfor this purpose is made of duck alternatedin layers with very thin layersof gum rubber which are coated on each side with a composition formed of three parts of gum rubber to one of finely powdered mica. This coating gives to the edges'of the packing made from sheets of this material a lubripant gf very high fire test as the powdered mica is afinelubricant and indestructible by heat. The sheet can be cut into any" desired shape or form and when treated by my process makes a very fine pack- The bath or fluid mass into which the heated packing is placed and agitated in, as before stated, is preferably warmed until it becomes limpid and is preferably composed of one part of high fire test mineral oil and one part of rape seed oil, and parafiiue or other wax in and dried, when placed in this bath absorbs the proportion of five pounds of wax to every ten gallons of the mixture of oils. To this mixture is added about two pounds of very 5 finely divided soft metal, such as aluminium, copper, spelter or other metal softer than iron. The packing which has been previously heated the difierent; substances forming the bath. The packing is then removed from the bath and preferably partly dried, to leave on the surface among the other elements athin film i of wax, which if the packing be tumbled or' polished with the powdered metal will hold f on the surface of the packing a quantity of :1 the powder, giving to the packing the line finished appearance referred to above.

While I do not limit myself to the oils above referred to in making the bath I prefer to use 3 blown rape seed oil on account of its high reputation as a lubricant. The mineral oil-E when tempered to a perfect lubricant with rape seed oil is not injurious to any part of r the material or the rods. Ialso prefer not to use any of the animal oils as theyare'more or less injurious to the rubber parts of the packing and 'tallow is more or less injurious tothe rods-pitting the iron and forming verdigris i on the brass ones.

While I prefer what I term a limpid bath, baths of a higher temperature even to the boiling point maybe used in carrying outmy process but care should be taken when "high 1 temperatures are used not to injure the fabf rics forming the packings. What I claim as new is- 1. An improvement in the 'art of making packings which consists in immersing dry packing in 'a bath of lubricants, then removi ingsaid packings from the'bath, and then drying and coating the same with a metallic powder. j 2. An improvement in the art of makingpackings which consists in immersing *dryff packing in abath of lubricants, then remov-j ing said packing from the bath'and-then drying the same and before completely dried coating them with a metallic powder.

3. An improvement in the art of making packings which consists in heating said packings in a. high temperature, then immersing said packings in a limpid bath of lubricants,

then removing said packings from the bath,

i said packings consisting of a mineral oil, rape seed oil, wax and a finely powdered metal, softer than iron.

6. In theart of making packings abath composed of non animal oils, and wax heated to a limpid state and a finely powdered-metal, softer than iron.

7. As an article of manufacture, a packing having an outer coat of finely powdered metal softer than iron.

8. As an article of manufacture a packing consisting of a body and having as part of its elements, oils, wax, and 'a finely powdered metal, softer than iron.

9. As :a new'article-of manufacture consistingot *a body, oils, wax and a finely powdered metal softer than iron within the body and a coating of said powdered metal in said body.

10. As a new article 'ofmanu factu re, apacking the body of which is made of layers of duck alternated with layers of gum ru'bber having their sides coated with a layer-composed of gum rubberand finely divided mica.

In testimony whereof .I affi'x my signature in presence of two witnesses.

JAMEs WALTER PEELLE.

Witnesses;

GEO. MCCAUSLAR, WILMOT L. MOREHOUSE. 

